I have tried almost all meters out there. I agree that trimming an aircraft lies in flying it, but trimming a badly aligned airframe is a waste of time.

I have been using the AeroPerfect for only a short while, but have improved the flight characteristics of my planes a lot. If you are a sunday flier, then this is not for you. If you are a precision aerobatic pilot, this will help you. The absolute repeatability of the meter makes it possible to properly document what changes you have made. (You do keep a log of your plane, don't you?)

At the end of the day, you makes your own choices. Not properly setting up a $5000+ plane is IMHO foolish.

Safe Flying!